Are you claiming that the Beatles were capable of time travel? "4th Time Around" was released many months after "Norwegian Wood," on which George Harrison became the first musician to ever play sitar on a Western song.
You missed my post where I said I was joking & that neither is a good song.
What is time travel? John Lennon and Bobby Dylan were hanging around together around the time Dylan went electric (see Eat The Document). A song is not written the moment it goes to tape.
I won't say which (if either) is a derivative work but the opportunity is there that either could have heard the other's material in the formative stages long before the street date or public performance.
Paul McCartney dropped in on Brian Wilson during Sgt. Peppers'/SMiLE too.